Neoeione moniliformis (Tate, 1859)

Descńption. Relatively large burrows with intricate internal strucfure preserved as full relief. Straight to winding, cylindrical to quadrate burrows run parallel or to some extent oblique to bedding which is occasionally undulose. Amufual crossing of burrows lying in the same hońzon is common. The longest observed individual burrow does not exceed 31 cm. The width of the burrow is typically 1.0 cm with the maximum of 1.5 cm. The burrows possess a thin muddy lining. The infill consists of a single row of sandy discs that are inclined towards the common direction or lie flat. The discs usually overlap resulting in imbrication and, in consequence, the upper surface of a bunow exhibits the annulation. The sediment of the disc-like lumps is similar to that of the host rock though it is frequentĘ paler. The branching has not been detected. Remarks. -,Ęionę' is interpreted as the burrow of a worm-like, deposit-feeding, endobenthic animal that actively backfilled its burrow (Ires 1991). ,Eione, has been descńbed from the Dinantian Yoredale deposits of northern England (Thte 1859; Lees 1991) and from the lower Pennsylvanian Fountain Formation of Colorado (Maples & Suttner 1990). Very similar forms, but under different names' have been reported from other Carbońferorls sffata: the Pennsylvanian Minfurn Formation of Colorado (Lockley et al. 1987), the Mississippian of Incliana (Archer 1984) and Alabama (Rindsberg 1994) and the Lower Carboniferous of Sinai (Seilacher 1990b)

Diagnosis. Straight to sinuous, predominantly horizontal to subhorizontal trace fossil backfilled with inclined, clay- or silt-lined sediment packages that cross-cut one another. The upper surface is a series of broadly trapezoidal protrusions. The lower surface is smooth and convex. Successive branching and subvertical portions are rarely present.